The 83rd Ohio Infantry Regiment, sometimes 83rd Ohio Volunteer Infantry (or 83rd OVI) was an infantry regiment in the Union Army during the American Civil War. It was nicknamed "The Greyhound Regiment". Service The 83rd Ohio Infantry was organized at Camp Dennison near Cincinnati, Ohio August through September 1862 and mustered in for three years service under the command of Colonel Frederick William Moore. The regiment was attached to 1st Brigade, 2nd Division, Army of Kentucky, Department of the Ohio, to December 1862. 1st Brigade, 10th Division, XIII Corps), Department of the Tennessee, December 1862. 1st Brigade, 1st Division, Sherman's Yazoo Expedition, to January 1863. 1st Brigade, 10th Division, XIII Corps, Army of the Tennessee, to August 1863. 1st Brigade, 4th Division, XIII Corps, Army of the Tennessee, August 1863, and Department of the Gulf to January 1864. 2nd Brigade, 3rd Division, XIII Corps, Army of the Gulf, to March 1864. 1st Brigade, 4th Division, XIII Corps, to June 1864. 3rd Brigade, 3rd Division, XIX Corps, Department of the Gulf, to December 1864. Post of Natchez, Mississippi, District of Vicksburg, Mississippi, to January 1864. 3rd Brigade, Reserve Corps, Military Division West Mississippi, to February 1865. 3rd Brigade, 2nd Division, Reserve Corps, February 1865. 3rd Brigade, 2nd Division, XIII Corps, to July 1865. The 83rd Ohio Infantry mustered out of service at Galveston, Texas, on July 24, 1865, and was discharged at Camp Dennison on August 10, 1865. Veterans and recruits were transferred to the 48th Ohio Infantry Battalion. Detailed service Moved to Covington, Ky., September 3, 1862, to repel Kirby Smith's threatened attack on Cincinnati, Ohio. Expedition to Cynthiana, Ky., September 18, 1862. Moved to Camp Shaler September 25, then to Paris, Ky., October 15. To Louisville, Ky., October 28, and to Memphis, Tenn., November 23. Sherman's Yazoo Expedition December 20, 1862, to January 3, 1863. Expedition from Milliken's Bend to Dallas Station and Delhi, December 25–26. Chickasaw Bayou December 26–28. Chickasaw Bluff December 29. Expedition to Arkansas Post, Ark., January 3–10, 1863. Assault and capture of Fort Hindman, Arkansas Post, January 10–11. Moved to Young's Point, La., January 15, and duty there until March 10. Expedition to Greenville, Miss., and Cypress Bend, Ark., February 14–26. Deer Creek near Greenville February 23. At Milliken's Bend, La., until April 15. Movement on Bruinsburg and turning Grand Gulf April 25–30. Battle of Port Gibson May 1. Battle of Champion Hill May 16.